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Table 7.4-1. Description of Fuel Cycle Options*
Throwaway/Stowaway Option (see Fig. 6.1-1):
Option 1. LEU converters on once-through cycle.
Plutonium-Uranium Options (see Fig. 6.1-2):
Option 2. Pu/U recycle option; LEU converters outside center; Pu/U converters
inside center; HTGRs inside center operate on 235U/Th, 233U/Th, and
Pu/Th.
Option 3.
Pu/U recycle option; LEU converters outside center; Pu/U converters
and breeders inside center; HTGRs inside center operate on 235U/Th,
233U/Th, and Pu/U.
Denatured Uranium Options Using Converters Only (see Fig. 6.1-3):
Option 4.
Option 5U.
Plutonium throwaway option; LEU and denatured 235U and 233U converters
outside center; no reactors inside center; U only recycled.
Plutonium minimization option; LEU and denatured 235U and 233U con-
verters outside center; Pu/Th converters inside center; U and Pu
recycl ed.
Option 5T. Same as 5U without denatured 235U converters.
Denatured Uranium Options Using Both Converters and Breeders (see Fig. 6.1-4):
Option 6. Light transmutation option; LEU and denatured 235U and 233U conver-
ters outside center; Pu/Th converters and Pu-U/Th breeders inside
center.
Option 7.
Option 8.
Light transmutation option with denatured breeder; LEU converters,
denatured 23sU converters, and denatured 233U converters and breeders
outside center; Pu/Th converters and Pu-U/Th breeders inside center.
Heavy transmutation option; same as Option 7 except inside breeder is
a Pu-Th/Th breeder.
*Four cases considered under each option, identified by letters L, S, H, and G to denote
type of converter employed in addition to LEU-LWRs (L = LWR, S = SSCR, H = HWR, G = HTGR).
The effect of varying the fuel cycle system can be seen by reading across Table 7.4-2
and the effect of changing the converter reactor option can be deduced by 'reading down a
column. An installed nuclear canacity of 1100 GWe in year 2050 indicates that the projected
energy demand is fully met by tne reactors in a given nuclear fuel cycle system.
c
L
I:
L
6:
L
I:
c